CN102235735B - Heat exchanger for heat pump system - Google Patents
Heat exchanger for heat pump system Download PDFInfo
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- CN102235735B CN102235735B CN2010101657760A CN201010165776A CN102235735B CN 102235735 B CN102235735 B CN 102235735B CN 2010101657760 A CN2010101657760 A CN 2010101657760A CN 201010165776 A CN201010165776 A CN 201010165776A CN 102235735 B CN102235735 B CN 102235735B
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Abstract
The invention discloses a micro channel heat exchanger for a heat pump system. The heat exchanger comprises an upper part head tube, a lower part head tube and a plurality of separated parallel flat tubes for communicating the upper part head tube with the lower part head tube, wherein a plurality of fins are arranged on each flat tube; the heat exchanger is divided into a first plane and a second plane; a drainage baffle sheet clamped on the external surface of each flat tube is arranged between the upper part head tube and the lower part head tube; one side of each drainage baffle sheet is provided with a first edge higher than the first plane of the heat exchanger, and the other side of each drainage baffle sheet is provided with a second edge higher than the second plane of the heat exchanger; and the second edges and the first edges are oppositely distributed. The drainage baffle sheets can effectively discharge water drops converged on the flat tubes and the fins, so that the discharge of the water drops on the surfaces of the flat tubes and the fins is improved, air flow is increased, the heat exchange efficiency of the heat pump system is improved, and the aims of high efficiency and energy conservation are fulfilled.
Description
Technical field
The present invention relates to the cold and hot switching technology technique of idle call, the micro-channel heat exchanger that particularly a kind of air-conditioning heat pump is used.
Background technology
At present, the refrigeration system of air-conditioning and heating adopt heat pump to carry out, and the heat pump in heat pump is to be transported to heat by low-temperature heat source the plant equipment of high temperature heat source.Such as in the winter time, outdoor air, the surface water, underground water etc. are exactly low-temperature heat source, and room air is exactly high temperature heat source, and the effect of heat pump air conditioner is exactly can be the heat delivery of outdoor environment to indoor environment.
Shown in Fig. 1, what show a kind of heat pump in prior art heats circulation theory figure; This heat pump comprises: evaporimeter 101, compressor 102, condenser 103 and expansion valve 104; The specific works process heated of this heat pump is: at first, the two phase refrigerant of low-temp low-pressure (mixing of liquid phase refrigerant and vapor phase refrigerant), at the heat of the interior absorption cryogenic object of evaporimeter 101, flashes to gas refrigerant; Then, this low-temp low-pressure gas refrigerant is through the gas refrigerant of compressor 102 boil down to HTHPs; Then, the gas refrigerant of described HTHP discharged heat energy in condenser 103 to hot environment, self become the cryogenic high pressure liquid refrigerant simultaneously; Secondly, this cryogenic high pressure liquid refrigerant reduces pressure in expansion valve 104, becomes the two phase refrigerant of low-temp low-pressure, again enters evaporimeter 101, repeats above-mentioned outdoor circulation to be heated to process.Certainly, comprise the structure of heat exchanger in the structure of this evaporimeter 101, and this heat exchanger is provided with air intake duct and blast pipe, wherein air intake duct is for receiving the two phase refrigerant of extraneous low-temp low-pressure, and blast pipe is for discharging the gas after circulation.
Actual heat pump can also be under cooling condition, particularly, while using this heat pump to be freezed, prior art can be passed through electromagnetic switch, by the exchange of the position of the air intake duct of heating and blast pipe, and then the flow direction of the cold-producing medium in above-mentioned heat pump process of refrigerastion is changed.Correspond to above-mentioned heating condition, formerly serve as that the heat exchanger that comprises in evaporimeter 1 is corresponding is adjusted into the heat exchanger that the condenser in cooling condition uses.Heat pump under cooling condition can, in indoor heat absorption to outdoor heat release, be realized the purpose of refrigeration thus.
No matter be that heat pump is in cooling condition or heating condition, the heat exchanger comprised in its evaporimeter and condenser is to carry out the pith of exchange heat in heat pump, and the efficiency of this heat exchanger performance and heat radiation directly has influence on the performance of whole heat pump.
Shown in Fig. 2, Fig. 2 shows the structural representation of micro-channel heat exchanger 200 of the prior art, and this heat exchanger 200 comprises: top head tube 201, the bottom head tube 202 that is parallel to top head tube 201, the vertical fin 204 arranged between a plurality of parallel flat tube 203 between top head tube 201 and bottom head tube 202 and adjacent flat tube 203.When heat exchanger 200 is in condenser at present of cooling condition when inner, the high-temperature high-pressure refrigerant gas that compressor in Fig. 1 is discharged enters heat exchanger 200 from the refrigerant inlet 205 shown in Fig. 2, after the top head tube 201 of flowing through, be assigned in each root flat tube 203, carry out heat exchange with the outer Cryogenic air of flowing through of pipe, liberated heat is taken away by Cryogenic air, high-temperature high-pressure refrigerant in flat tube 203 is cooled to liquid state by gaseous state, through outlet 206 outflow heat exchangers of bottom head tube 202.All be furnished with fin 204 between any two flat tubes 203 in this heat exchanger 200, and the identical design of a plurality of flat tubes that be arranged in parallel 203 employing of this heat exchanger 200, spacing is identical, and the form of flat tube 203 is also identical, and corresponding one by one on horizontal direction.In addition, in the structure of top head tube 201 and bottom head tube 202 for the hole that is communicated with flat tube 203 symmetry arrangement all; Be mainly used in increasing the heat exchange area of air side, thereby improve the heat exchange amount; And be easy to processing and assemble.
The heat exchanger 200 of take describes as example in heating condition, and when heat exchanger 200, during in heating condition, this heat exchanger 200 is arranged in the evaporimeter inside of heat pump, and because evaporating temperature is lower, the surface temperature of the fin 204 of heat exchanger 200 also descends thereupon.If surface temperature is lower than dew-point temperature, when outside air is flowed through heat exchanger 200 under blower fan drives, its contained moisture will separate out and be attached to flat tube 203 surfaces and form condensed water, although condensed water is subject to the impetus of gravity and Air Flow, and discharge downwards.Heat exchanger in actual heat pump, not only the gap of fin is very little, and various solder flux can have been left over and uneven in the flat tube surface, and then caused partial condensation water can't smooth and easyly to be discharged between top head tube 201 and bottom head tube 202, situation about perhaps occurring be exactly the condensed water bottom that converges in heat exchanger be can't discharge between bottom head tube 202 and relevant flat tube 203 thereof, affected heat exchange efficiency, when serious, condensed water also likely is blown into indoorly, causes heat pump integral body unavailable.Especially, when the evaporating temperature of the heat exchanger 200 of evaporimeter inside, during lower than 0 ℃, the moisture of separating out in air will form frost layer on its surface.And the condensed water no matter converged or the frost layer on surface, capital directly reduces the air side heat transfer coefficient of heat exchanger 200, increases the flow resistance of air, the obstruct airflow road, make frost layer more long-pending thicker even icing simultaneously, greatly reduced the heat capacity of heat pump.When actual motion, because the unit frosting is serious, evaporating pressure is too low, and the cold-producing medium evaporation capacity sharply reduces, and returns liquid and too much causes the possibility of liquid hammer greatly to increase, and these often cause unit operation unstable, unit is in operation and often breaks down, and shut down even.
In sum, how to solve in prior art the condensed water and the frost layer phenomenon that occur when micro-channel heat exchanger is as condenser or evaporimeter use, improving the air side heat transfer coefficient of heat exchanger and the flow resistance of minimizing air side is problem demanding prompt solution.
Summary of the invention
Introduced the concept of a series of reduced forms in the summary of the invention part, this will further describe in specific embodiment part.Summary of the invention part of the present invention does not also mean that key feature and the essential features that will attempt to limit technical scheme required for protection, does not more mean that the protection domain of attempting to determine technical scheme required for protection.
In order effectively to address the above problem, the present invention proposes a kind of micro-channel heat exchanger for air-conditioning heat pump, described heat exchanger comprises top head tube, bottom head tube and is communicated with described top head tube and a plurality of parallel flat tubes that separate of bottom head tube, be provided with a plurality of fins on described flat tube, described heat exchanger is divided into the first plane and the second plane, it is characterized in that, be provided with the draining catch that is connected to described flat tube outer surface between described top head tube and bottom head tube.
Further, a side of described draining catch is provided with the first edge higher than the first plane of described heat exchanger.
Further, the opposite side of described draining catch is provided with the second edge higher than the second plane of described heat exchanger.
Further, described draining catch is structure as a whole and the described a plurality of parallel flat tubes that separate of clamping simultaneously.
Further, described draining catch is one or more.
Further, the described draining catch that is connected to described flat tube outer surface is comprised of a plurality of independently draining catch that are connected in respectively between adjacent two flat tubes.
Further, the independently draining catch between described adjacent two flat tubes is a plurality of.
Further, the independently draining catch between described adjacent two flat tubes is curve form.
The distribution density difference in the zone that further, described fin separates at described draining catch.
Further, the aperture of described flat tube is any in circle, rectangle and triangle, and described draining washer is made by metal material or plastics.
Compared with prior art, the present invention will increase flat tube for discharging heat exchanger and the draining catch of the fin surface globule between the top head tube in heat exchanger structure in prior art and bottom head tube.Wherein the actual process according to heat pump arranges the quantity of draining catch and the distribution angle of its position, and the angle of draining catch is according to the direction setting of fan.Thus, no matter heat exchanger of the present invention is in refrigeration or heating condition, can make the discharge of the globule of flat tube and fin surface improve, also can play a role in improving to frosting simultaneously, increased further flowing of air side, improve the heat exchange efficiency of heat pump, reached energy-efficient purpose.
The accompanying drawing explanation
Following accompanying drawing of the present invention is used for understanding the present invention in this as a part of the present invention.Shown in the drawings of embodiments of the invention and description thereof, be used for explaining principle of the present invention.In the accompanying drawings,
Fig. 1 is the kind of refrigeration cycle schematic diagram of heat pump of the prior art;
Fig. 2 is the structural representation of micro-channel heat exchanger of the prior art;
Fig. 3 A is the structural representation according to the micro-channel heat exchanger in the embodiment of the present invention one;
Fig. 3 B is the partial structurtes side view in the micro-channel heat exchanger shown in Fig. 3 A;
Fig. 4 is the profile according to the micro-channel heat exchanger in the embodiment of the present invention two;
Fig. 5 A and Fig. 5 B are the structural representations of the draining catch in micro-channel heat exchanger of the present invention;
Fig. 6 A and Fig. 6 B are the partial structurtes schematic diagrames according to the micro-channel heat exchanger in the embodiment of the present invention three;
Fig. 6 C is the structural representation according to the draining catch of the micro-channel heat exchanger in the embodiment of the present invention three;
Fig. 7 A and Fig. 7 B are the schematic diagrames of the flat tube that uses according to the micro-channel heat exchanger gone out shown in the present.
The specific embodiment
In the following description, a large amount of concrete details have been provided in order to more thorough understanding of the invention is provided.Yet, it will be apparent to one skilled in the art that the present invention can be implemented without one or more these details.In other example, for fear of obscuring with the present invention, for technical characterictics more well known in the art, be not described.Execution of the present invention is not limited to the specific details that those skilled in the art has the knack of.Preferred embodiment of the present invention is described in detail as follows, yet, except these are described in detail, the present invention can also have other embodiments.
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
Shown in figure 3A and Fig. 3 B, Fig. 3 A is the structural representation according to the micro-channel heat exchanger in the embodiment of the present invention one.Wherein, heat exchanger 300 comprises: top head tube 301, be parallel to the bottom head tube 302 of described top head tube 301, a plurality of flat tubes 305 that be arranged in parallel between this top head tube 301 and bottom head tube 302, this flat tube 305 and top head tube 301, bottom head tube 302 are all in connected state, and be welded with a plurality of wavy fins 306 that separate on this flat tube 305, especially, be provided with draining catch 307 between top head tube 301 and bottom head tube 302, this draining catch 307 is connected in the outer surface of flat tube 305.
From Fig. 3 A, can find out, described draining catch 307 is divided into I district and II district by the flat tube of heat exchanger 300 305 and fin 306, preferably, gap and distribution density that can fin 306 in I district and II district be set to difference, as: as described in the width of II district fin and density be less than as described in width and the density of I district fin, II district fin or described I district fin can be light fin or the sheet of windowing.Its I district fin and II district fin arrange can according to actual heat pump drainage efficiency and heat exchange efficiency and determining.Alternatively, this draining catch 307 can be parallel to top head tube 301 (as shown in Figure 3A), perhaps, this draining catch 307 forms an angle with top head tube 301, be obliquely installed (not shown) between top head tube 301 and bottom head tube 302, this draining catch 307 can be set according to the demand of actual heat pump with the position relationship of top head tube 301.It should be noted that, in the present embodiment, draining catch 307 can be determined according to the wind direction F of heat pump fan with the clamping angle of each flat tube 305.
Further, shown in figure 3B, the left view that Fig. 3 B is the micro-channel heat exchanger in Fig. 3 A.From the position relationship of Fig. 3 B middle and upper part head tube 301 and draining catch 307,1/2nd places of draining catch 307 distance between top head tube 301 and bottom head tube 302, thus, can be divided into two parts by fin 306.The position relationship of flat tube 305 and draining catch 307 from Fig. 3 B, arrange the first angle a between this draining catch 307 and flat tube 305, this first angle a sets according to wind direction F (parallel arrow as shown in Figure 3 B).That is to say, draining washer 307 has the first suitable angle a with respect to vertical line, and the size of this first angle a is relevant with wind direction F, and wind direction and the formed angle of draining washer should make the globule be dropped on the draining washer to be blown off glibly.Certainly, wind direction is that air-conditioning fan provides in heat pump.Preferably, this draining catch 307 can be welded on flat tube 305, once weld, angle is also just fixing.Perhaps, also can be designed to adjustable draining washer 307 according to actual process, adjust the angle of draining washer 307 by a controlling organization, this controlling organization can be manual can be also that computer is controlled automatically, described controlling organization can adopt any mode commonly known in the art.
Take cooling condition as example, when a side of top head tube 301 during as the entrance 303 of refrigerant gas, the globule of the condensed water converged on described I district fin 306 and flat tube 305 can converge on draining catch 307 along flat tube 306, and then the fan that adopts heat pump will converge in the condensed water globule discharge on the water catch 307 that this row tilts, guarantee the heat exchange efficiency of heat exchanger 300, made heat exchanger normally to move.
In addition, for convenience of describing, in the present invention, described heat exchanger 300 is divided into to the first plane 308 and second plane 309 of heat exchanger 300, a side that shows the wind direction F of close fan in heat exchanger 300 in Fig. 3 B is called the first plane 308, and relative opposite side is called the second plane 309 of heat exchanger 300.(shown in figure 5A or Fig. 5 B) in other embodiments of the invention, a side of draining catch 307 is provided with the first edge higher than described heat exchanger 300 first planes 308 (plane of the first plane 308 of stating heat exchanger 300, this place and described draining catch 307 is vertical relation each other).Alternatively, the opposite side of draining catch 307 is provided with the second edge higher than described heat exchanger the second plane 309.Described the first edge or the second edge are used for the globule of collect/water conservancy diversion on this draining catch, and facilitate the setting of heat pump fan wind direction.Certainly, in the situation that suitable, the first edge or the second edge are omissible, such as, when the wind speed of fan is enough large, make like this globule collected on washer to be blown away soon, now, the first edge or the second edge have not just needed.
Shown in Fig. 4, Fig. 4 is the profile according to the micro-channel heat exchanger in the embodiment of the present invention two; Wherein, be provided with two draining catch 401 and 402 between the top head tube of heat exchanger 400 and bottom head tube.Preferably, draining catch 401 and draining catch 402 lay respectively at 1/3rd places and 2/3rds places of distance between top head tube and bottom head tube.This draining catch 401 and 402 is structure as a whole for strengthening the drainage effect of this heat exchanger, when the structure of heat exchanger is larger, can between top head tube and bottom head tube, increase two or more draining catch, and this draining catch can clamping or be welded on the outer surface of each flat tube.Specifically arranging according to actual heat exchanger structure of draining catch set, the following Fig. 5 A of structure that this draining catch is concrete and the description of Fig. 5 B.
Particularly, shown in figure 5A and Fig. 5 B, Fig. 5 A and Fig. 5 B are respectively the different structure schematic diagram of the draining catch in micro-channel heat exchanger.The material of draining catch can aluminium alloy or panel beating material or other metal material.Preferably, the material of draining catch can also be used plastics standby, or the material of similar plastics material preparation, the selecting according to actual heat pump requirements set of material.Fig. 5 A shows the structure of the first draining catch 501, and this first draining catch 501 comprises a plurality of the first openings 502 for the clamping flat tube, and for receiving the first edge 503 of the globule above flat tube.Described each first opening 502 is by the first edge 503 parallel and arrangement regularly successively.In the present embodiment, described a plurality of the first openings and the first edge can be structure as a whole, and the quantity of this first opening is corresponding to the quantity of flat tube in heat exchanger.Being shown in Fig. 3 A is structure as a whole and the described a plurality of parallel flat tubes that separate of clamping simultaneously with the draining catch in Fig. 4.
The width of described the first opening 502 and the size of length are arranged according to thickness, the length of flat tube in heat exchanger, its objective is and flat tube can be connected in the first opening 502.Described in the present embodiment, the shape of the first opening 502 can be strip.This first opening 502 can be fixedly connected with flat tube (for example, can be fixedly connected with by the mode of welding, or adopt the mode of riveted joint, or carry out bonding connection etc. with binding).In addition, the first edge 503 of stationary arrangement the first opening 502 is for receiving the globule that converges on flat tube and fin (at actual heat pump, described heat exchanger is in vertical state), in the structure of heat exchanger, this the first draining catch 501 exceeds 308 1, the first plane of heat exchanger height (this height is corresponding to the width at the first edge), can make thus the globule that is dropped on the first draining catch 501 by fan by its smooth discharge, and facilitate the setting of heat pump fan wind direction, the globule that assurance is converged is away from heat exchanger, be not easy to drop onto in the heat exchanger structure of the first draining catch 501 belows.Certainly, the distance between any two the first adjacent openings 502 is to set according to the distance between adjacent flat tube.Preferably, the width at above-mentioned the first edge 503 can be determined according to the actual demand of heat exchanger.
Shown in figure 5B, Fig. 5 B shows the structural representation of the second draining catch 504 in micro-channel heat exchanger.The structure difference of the structure of the second draining catch 504 shown in Fig. 5 A and the first draining catch 501 is: this second draining catch 504 also is provided with the second edge 505 corresponding to the first edge 503 ', wherein, the first edge 503 ' and the second edge 505, by the first opening 502 ' stationary arrangement, make the first opening 502 ', the first edge 503 ' and the second edge 505 become one structure.Certainly, the width of the first opening 502 ' and length are corresponding to thickness, the length of flat pipes of heat exchanger.Wherein, the second edge 505 corresponding to the first edge 503 ' for receiving the globule converged on flat tube and fin, in heat exchanger structure, the both sides of this second draining catch 504 exceed respectively the first plane 308 and second plane 309 of heat exchanger, conveniently make thus to drip/converge in the globule on the first edge 503 ' and the second edge 505 by fan by its smooth discharge, guarantee that the globule can, away from heat exchanger, be unlikely to drop onto in the heat exchanger structure of the second draining catch 504 belows.
Preferably, the described draining catch that is connected to described flat tube outer surface is comprised of a plurality of independently the 3rd draining catch 601 that are connected in respectively between adjacent two flat tubes.The 3rd draining catch 601 is single baffle structure independently, the 3rd draining catch 601 is without the first opening of above-mentioned first row water catch 501, but can there is the structure that is similar to above-mentioned the first edge and/or the second edge, its the 3rd draining catch 601 clampings/be fixed between adjacent two flat tubes, for the flat tube of strengthening heat exchanger and the drain function of fin.Shown in figure 6A, Fig. 6 B and Fig. 6 C.The 3rd draining catch 601 is independent integrative-structures that arrange.When actual application, can be inclined between two flat tubes.Two limits of the 3rd draining washer 601 (both sides that are different from the first edge and the second edge) respectively with adjacent two flat tube phases clamping (can be to be fixedly connected with).The upper and lower of the adjacent flat tube in Fig. 6 A is respectively equipped with two the 3rd draining washers 601, specifically is arranged on 1/3rd positions and 2/3rds positions of distance between top head tube and bottom head tube.The 3rd draining catch 601 of this integrative-structure can be planar structure, and its inclination is connected between adjacent flat tube, and the quantity of the 3rd draining catch 601 arranged between every adjacent flat tube can be different.Be that a plurality of the 3rd draining catch 601 are set between adjacent flat tube, and the position of a plurality of differing heights that the plurality of the 3rd draining catch 601 can be between top head tube and bottom head tube.Preferably, between a plurality of the 3rd draining catch 601 and flat tube, the angle of clamping can be different.Because the wind direction of heat pump fan may be different with respect to the middle part in heat exchanger, ,He bottom, top, therefore a plurality of the 3rd draining washer 601 also can arrange difference at the middle part of heat exchanger, the angle of inclination of upper and lower.In actual technique, the position that the 3rd draining washer 601 is set is mainly according to the equilibrium relation at heat exchange efficiency and drainage efficiency.
In addition, the structure of the 3rd draining catch 601 ' shown in Fig. 6 B is different from the structure of the draining catch shown in Fig. 6 A, the 3rd draining catch 601 ' in Fig. 6 B be shaped as curve form (this curve form can be similar to the shape of tile), and when this curve form arranges, convex surface is received to the position of the globule converged corresponding to needs, the 3rd draining catch 601 ' of curve form as shown in Figure 6 C, thereby the 3rd draining catch 601 ' of this structure can better be discharged the globule converged.Certainly, for the part between every adjacent two first openings of Fig. 5 A and shown the first draining catch of Fig. 5 B and the second draining catch, also can be set to curve form, the corresponding globule that receives of the convex surface of its this curve form.
Shown in figure 7A and Fig. 7 B, Fig. 7 A and Fig. 7 B are the schematic diagrames of two kinds of flat tubes using according to the micro-channel heat exchanger gone out shown in the present, the structural representation that Fig. 7 A is the first flat tube, the structural representation that Fig. 7 B is the second flat tube.The flat tube of the heat exchanger in the present invention can adopt design wide at the top and narrow at the bottom.In addition, the flat tube inside in heat exchanger is provided with some passages for the cold-producing medium circulation, and these passages can be various shapes, such as square or circular.The first flat tube in heat exchanger and the second flat tube can adopt different perforate designs, and as the first flat tube adopts larger aperture, the second flat tube adopts less aperture.The form of flat tube perforate can be circle, square or other forms of hole.When heat exchanger running refrigerating operating mode, be mainly refrigerant liquid in flat tube, use the aperture like this can be so that the cold-producing medium flow velocity in flat tube improves, thereby heat exchange property is improved.
When heat exchanger operation heating condition, be full of the cold-producing medium of gas-liquid two-phase in flat tube, its volume flow is less, so the less flat tube in aperture is conducive to improve the cold-producing medium flow velocity, thereby improves the coefficient of heat transfer of liquid and gas mixed zone; And, when cold-producing medium enters flat tube, chief component has become gas phase, volume flow ratio two phase times are large a lot, and the pressure drop while adopting the large aperture design can effectively reduce cold-producing medium to flow through flat tube.
It should be noted that: the micro-channel heat exchanger in the present embodiment is the new high-efficiency heat exchanger that a kind of whole employing aluminum alloy materials is made, with traditional heat exchanger, compare, the performance of micro-channel heat exchanger on average can improve approximately 30% left and right, the charging amount of unit cold-producing medium on average can reduce by 30% left and right, heat exchanger is all made through soldering by a kind of materials of aluminum, not only be easy to reclaim, and avoided potential corrosion, therefore can guarantee the more long-term use efficiently of heat exchanger.
The present invention is illustrated by above-described embodiment, but should be understood that, above-described embodiment is the purpose for giving an example and illustrating just, but not is intended to the present invention is limited in described scope of embodiments.It will be appreciated by persons skilled in the art that in addition the present invention is not limited to above-described embodiment, according to instruction of the present invention, can also make more kinds of variants and modifications, these variants and modifications all drop in the present invention's scope required for protection.Protection scope of the present invention is defined by the appended claims and equivalent scope thereof.
Claims (5)
1. the micro-channel heat exchanger for heat pump, described heat exchanger comprises the top head tube, bottom head tube and be communicated with described top head tube and a plurality of parallel flat tubes that separate of bottom head tube, be provided with a plurality of fins on described flat tube, described heat exchanger is divided into the first plane and the second plane, it is characterized in that, also be provided with between described top head tube and bottom head tube and be connected to described flat tube outer surface, the draining catch that is different from described a plurality of fins, described draining catch is comprised of a plurality of independently draining catch that are connected in respectively between adjacent two flat tubes, described independently draining catch has higher than first edge on the first plane of described heat exchanger and/or higher than second edge on the second plane of described heat exchanger.
2. micro-channel heat exchanger as claimed in claim 1, is characterized in that, the independently draining catch between described adjacent two flat tubes is a plurality of.
3. micro-channel heat exchanger as claimed in claim 1, is characterized in that, the independently draining catch between described adjacent two flat tubes is curve form.
4. micro-channel heat exchanger as claimed in claim 1, is characterized in that, the distribution density difference in the zone that described fin separates at described draining catch.
5. micro-channel heat exchanger as described as any one in claims 1 to 3, is characterized in that,
The aperture of described flat tube is any in circle, rectangle and triangle, and described draining washer is made by metal material or plastics.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101657760A CN102235735B (en) | 2010-05-05 | 2010-05-05 | Heat exchanger for heat pump system |
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| CN2010101657760A CN102235735B (en) | 2010-05-05 | 2010-05-05 | Heat exchanger for heat pump system |
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| CN102235735B true CN102235735B (en) | 2013-12-04 |
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| CN107843031B (en) * | 2016-09-19 | 2020-06-16 | 杭州三花微通道换热器有限公司 | Micro-channel heat exchanger |
| JP7263970B2 (en) * | 2019-08-06 | 2023-04-25 | 株式会社デンソー | Heat exchanger |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007285673A (en) * | 2006-04-20 | 2007-11-01 | Yanmar Co Ltd | Drain structure for corrugated type heat exchanger |
| CN101298951A (en) * | 2008-06-20 | 2008-11-05 | 清华大学 | Slice penetrating type mini channel heat exchanger with automatic solution dividing structure |
| CN101619939A (en) * | 2009-08-13 | 2010-01-06 | 三花丹佛斯（杭州）微通道换热器有限公司 | Heat exchanger |
| CN201387254Y (en) * | 2009-03-19 | 2010-01-20 | 美的集团有限公司 | All-aluminum micro-channel heat exchanger |
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2010
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007285673A (en) * | 2006-04-20 | 2007-11-01 | Yanmar Co Ltd | Drain structure for corrugated type heat exchanger |
| CN101298951A (en) * | 2008-06-20 | 2008-11-05 | 清华大学 | Slice penetrating type mini channel heat exchanger with automatic solution dividing structure |
| CN201387254Y (en) * | 2009-03-19 | 2010-01-20 | 美的集团有限公司 | All-aluminum micro-channel heat exchanger |
| CN101619939A (en) * | 2009-08-13 | 2010-01-06 | 三花丹佛斯（杭州）微通道换热器有限公司 | Heat exchanger |
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